Prognostic Analysis of Thymoma-Associated Myasthenia Gravis (MG) in Chinese Patients and Its Implication of MG Management: Experiences from a Tertiary Hospital

Di Chen, Yuyao Peng, Zhibin Li, Wanlin Jin, Ran Zhou, Yi Li, Qiushuang Xu, Huan Yang Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, People’s Republic of ChinaCorrespondence: Huan YangDepartment of Neurology, Xiangya Hospital, Central South University,...

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Autores principales:	Chen D, Peng Y, Li Z, Jin W, Zhou R, Li Y, Xu Q, Yang H
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2020
Materias:	myasthenia gravis thymoma the who classification clinical presentation prognostic factors. Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571 Neurology. Diseases of the nervous system RC346-429
Acceso en línea:	https://doaj.org/article/924894252deb49548428497af10bd8f5
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spelling	oai:doaj.org-article:924894252deb49548428497af10bd8f52021-12-02T08:58:26ZPrognostic Analysis of Thymoma-Associated Myasthenia Gravis (MG) in Chinese Patients and Its Implication of MG Management: Experiences from a Tertiary Hospital1178-2021https://doaj.org/article/924894252deb49548428497af10bd8f52020-04-01T00:00:00Zhttps://www.dovepress.com/prognostic-analysis-of-thymoma-associated-myasthenia-gravis-mg-in-chin-peer-reviewed-article-NDThttps://doaj.org/toc/1178-2021Di Chen, Yuyao Peng, Zhibin Li, Wanlin Jin, Ran Zhou, Yi Li, Qiushuang Xu, Huan Yang Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, People’s Republic of ChinaCorrespondence: Huan YangDepartment of Neurology, Xiangya Hospital, Central South University, Changsha 410008, People’s Republic of ChinaEmail yangh69@126.comBackground: Myasthenia gravis (MG) is an autoantibody-mediated neuromuscular disorder. Approximately 10– 20% of all MG patients experience thymoma (benign tumor arising from thymus tissue). Thymectomy has been the standard of care for thymomatous myasthenia gravis (TMG). However, the clinical outcome of TMG after thymectomy has not been sufficiently studied, especially the long-term prognosis. Therefore, the aim of this study was to analyze the clinical characteristics contributing to the prognostic factors of TMG.Methods: We reviewed 70 TMG patients in the Xiangya Hospital and classified them into the minimal manifestation (MM) group and No MM group, according to the long-term treatment outcome. MM-or-better status was defined as the goal treatment for TMG patients. We collected and analyzed the demographic data, the WHO classification of thymoma, MG-associated antibody levels, disease severity, treatment-related data as well as clinical outcome at six months. Variables selected by univariate analysis were used in the multivariate logistic regression model to identify the prognostic factors.Results: The differences in clinical outcome at six months and worst QMGS were significant, while the differences in other factors were insignificant between groups. Clinical outcome at six months (OR=23.5 95% CI 2.4– 231.5, P=0.007) and dyspnea before thymectomy (OR=0.2, 95% CI 0.03– 0.75, P=0.021) were identified as the prognostic factors of long-term treatment.Conclusion: Demographic and clinical features were similar in TMG patients treated at our hospital. The early achievement of MM-or-better status may indicate a good outcome in the long term. Dyspnea before thymectomy appears to associate with a poor prognosis.Keywords: myasthenia gravis, thymoma, the WHO classification, clinical presentation, prognostic factorsChen DPeng YLi ZJin WZhou RLi YXu QYang HDove Medical Pressarticlemyasthenia gravisthymomathe who classificationclinical presentationprognostic factors.Neurosciences. Biological psychiatry. NeuropsychiatryRC321-571Neurology. Diseases of the nervous systemRC346-429ENNeuropsychiatric Disease and Treatment, Vol Volume 16, Pp 959-967 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	myasthenia gravis thymoma the who classification clinical presentation prognostic factors. Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571 Neurology. Diseases of the nervous system RC346-429
spellingShingle	myasthenia gravis thymoma the who classification clinical presentation prognostic factors. Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571 Neurology. Diseases of the nervous system RC346-429 Chen D Peng Y Li Z Jin W Zhou R Li Y Xu Q Yang H Prognostic Analysis of Thymoma-Associated Myasthenia Gravis (MG) in Chinese Patients and Its Implication of MG Management: Experiences from a Tertiary Hospital
description	Di Chen, Yuyao Peng, Zhibin Li, Wanlin Jin, Ran Zhou, Yi Li, Qiushuang Xu, Huan Yang Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, People’s Republic of ChinaCorrespondence: Huan YangDepartment of Neurology, Xiangya Hospital, Central South University, Changsha 410008, People’s Republic of ChinaEmail yangh69@126.comBackground: Myasthenia gravis (MG) is an autoantibody-mediated neuromuscular disorder. Approximately 10– 20% of all MG patients experience thymoma (benign tumor arising from thymus tissue). Thymectomy has been the standard of care for thymomatous myasthenia gravis (TMG). However, the clinical outcome of TMG after thymectomy has not been sufficiently studied, especially the long-term prognosis. Therefore, the aim of this study was to analyze the clinical characteristics contributing to the prognostic factors of TMG.Methods: We reviewed 70 TMG patients in the Xiangya Hospital and classified them into the minimal manifestation (MM) group and No MM group, according to the long-term treatment outcome. MM-or-better status was defined as the goal treatment for TMG patients. We collected and analyzed the demographic data, the WHO classification of thymoma, MG-associated antibody levels, disease severity, treatment-related data as well as clinical outcome at six months. Variables selected by univariate analysis were used in the multivariate logistic regression model to identify the prognostic factors.Results: The differences in clinical outcome at six months and worst QMGS were significant, while the differences in other factors were insignificant between groups. Clinical outcome at six months (OR=23.5 95% CI 2.4– 231.5, P=0.007) and dyspnea before thymectomy (OR=0.2, 95% CI 0.03– 0.75, P=0.021) were identified as the prognostic factors of long-term treatment.Conclusion: Demographic and clinical features were similar in TMG patients treated at our hospital. The early achievement of MM-or-better status may indicate a good outcome in the long term. Dyspnea before thymectomy appears to associate with a poor prognosis.Keywords: myasthenia gravis, thymoma, the WHO classification, clinical presentation, prognostic factors
format	article
author	Chen D Peng Y Li Z Jin W Zhou R Li Y Xu Q Yang H
author_facet	Chen D Peng Y Li Z Jin W Zhou R Li Y Xu Q Yang H
author_sort	Chen D
title	Prognostic Analysis of Thymoma-Associated Myasthenia Gravis (MG) in Chinese Patients and Its Implication of MG Management: Experiences from a Tertiary Hospital
title_short	Prognostic Analysis of Thymoma-Associated Myasthenia Gravis (MG) in Chinese Patients and Its Implication of MG Management: Experiences from a Tertiary Hospital
title_full	Prognostic Analysis of Thymoma-Associated Myasthenia Gravis (MG) in Chinese Patients and Its Implication of MG Management: Experiences from a Tertiary Hospital
title_fullStr	Prognostic Analysis of Thymoma-Associated Myasthenia Gravis (MG) in Chinese Patients and Its Implication of MG Management: Experiences from a Tertiary Hospital
title_full_unstemmed	Prognostic Analysis of Thymoma-Associated Myasthenia Gravis (MG) in Chinese Patients and Its Implication of MG Management: Experiences from a Tertiary Hospital
title_sort	prognostic analysis of thymoma-associated myasthenia gravis (mg) in chinese patients and its implication of mg management: experiences from a tertiary hospital
publisher	Dove Medical Press
publishDate	2020
url	https://doaj.org/article/924894252deb49548428497af10bd8f5
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Prognostic Analysis of Thymoma-Associated Myasthenia Gravis (MG) in Chinese Patients and Its Implication of MG Management: Experiences from a Tertiary Hospital

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